Howdy Folks!
I have never been to a gun show ever. Not even once. I am given to understand that most of them around these parts prohibit carrying of a handgun at their locations anyhow, and I just can't wrap my mind around the notion that I should be required to part with my gun to visit a gun show. Same goes for gun shops.
There are several gun shops in town where you are more than welcome to visit and shop while carrying as usual, and they'll get my patronage.
If I am wrong in my understanding regarding gun shows, I am accepting of correction. But on the bottom line, I don't know anybody who went to a gun show and came away with a significant bargain that would beat the local gun shops.
Blessings,
M-Taliesin